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Idaho

$89+ Cheap flights from District of Columbia to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOI
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap flight deals from District of Columbia to Idaho

Cheapest flights from District of Columbia to Idaho
Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/254:10 pm
IAD
-
BOI
1 stop9h 28m
United Airlines
mié. 3/45:00 am
BOI
-
IAD
1 stop6h 05m
United Airlines
Deal found 1/27$257
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1511:55 am
DCA
-
GEG
1 stop9h 56m
United Airlines
mié. 4/297:10 am
GEG
-
DCA
1 stop6h 54m
United Airlines
Deal found 1/28$257
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/151:10 pm
IAD
-
GEG
1 stop8h 41m
United Airlines
mié. 4/297:10 am
GEG
-
IAD
1 stop7h 18m
United Airlines
Deal found 1/28$257
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/2512:38 pm
IAD
-
BOI
2 stops11h 18m
Delta
mié. 3/45:20 am
BOI
-
IAD
1 stop6h 14m
Delta
Deal found 1/27$262
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/259:54 am
DCA
-
BOI
2 stops10h 28m
Delta
mié. 3/45:20 am
BOI
-
DCA
1 stop6h 04m
Delta
Deal found 1/27$262
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/216:00 am
IAD
-
GEG
2 stops10h 03m
Delta
mar. 4/281:07 pm
GEG
-
IAD
1 stop7h 48m
Delta
Deal found 1/28$262
This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/26:27 pm
IAD
-
SUN
1 stop18h 43m
Alaska Airlines
vie. 3/67:04 pm
SUN
-
IAD
1 stop8h 36m
Alaska Airlines
Deal found 1/27$289
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/116:00 am
DCA
-
SUN
1 stop8h 54m
American Airlines
mar. 3/171:27 pm
SUN
-
DCA
1 stop7h 33m
American Airlines
Deal found 1/27$289
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/256:30 am
DCA
-
BOI
1 stop8h 18m
American Airlines
mié. 3/41:30 pm
BOI
-
DCA
1 stop8h 20m
American Airlines
Deal found 1/27$290
This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/67:20 pm
IAD
-
GEG
1 stop7h 35m
Alaska Airlines
mar. 5/198:38 pm
GEG
-
IAD
1 stop7h 56m
Alaska Airlines
Deal found 1/27$293
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/2910:05 am
IAD
-
SUN
2 stops13h 49m
Delta
jue. 9/33:25 pm
SUN
-
IAD
1 stop6h 26m
Delta
Deal found 1/27$294
This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/216:22 pm
IAD
-
GEG
1 stop30h 58m
Alaska Airlines
mar. 4/2810:30 am
GEG
-
IAD
1 stop28h 11m
Alaska Airlines
Deal found 1/27$297

Find flight deals from District of Columbia to Idaho

Keep the following information in mind while searching for District of Columbia to Idaho flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(United Airlines)

One-way from

$89
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$455
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
Search Deals
From District of Columbia to Idaho
Search Deals
One-way flight from District of Columbia to Idaho
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2026.
Use the filters below to find and compare flights from District of Columbia to Idaho that are best for you.

Fly from

District of Columbia

Fly to

Idaho

Route

Depart

Return

Price

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

mié. 4/15

11:55 am-6:51 pm

1 stop9h 56m

Spokane

mié. 4/29

7:10 am-5:04 pm

1 stop6h 54m

$257

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 2/25

12:38 pm-9:56 pm

2 stops11h 18m

Boise Air Term. Gowen Fld

mié. 3/4

5:20 am-1:34 pm

1 stop6h 14m

$262

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mié. 2/25

9:54 am-6:22 pm

2 stops10h 28m

Boise Air Term. Gowen Fld

mié. 3/4

5:20 am-6:59 pm

2 stops11h 39m

$268

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

lun. 3/2

6:27 pm-11:10 am

1 stop18h 43m

Hailey Sun Valley-Friedman

vie. 3/6

7:04 pm-5:40 am

1 stop8h 36m

$289

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

sáb. 2/28

2:36 pm-9:25 pm

1 stop8h 49m

Hailey Sun Valley-Friedman

jue. 3/5

1:29 pm-12:28 am

1 stop8h 59m

$289

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

mar. 2/17

7:05 am-12:01 pm

1 stop6h 56m

Hailey Sun Valley-Friedman

mar. 2/24

3:25 pm-11:46 pm

1 stop6h 21m

$289

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

sáb. 2/28

3:58 pm-9:19 pm

1 stop7h 21m

Hailey Sun Valley-Friedman

mié. 3/4

2:32 pm-11:19 pm

1 stop6h 47m

$309

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 4/28

9:00 am-3:33 pm

1 stop8h 33m

Boise Air Term. Gowen Fld

jue. 5/7

7:43 am-5:41 pm

1 stop7h 58m

$321

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mar. 5/5

7:10 am-1:23 pm

1 stop9h 13m

Spokane

mar. 5/19

8:38 pm-7:34 am

1 stop7h 56m

$321

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 4/28

7:00 am-4:14 pm

1 stop11h 14m

Boise Air Term. Gowen Fld

jue. 5/7

12:42 pm-11:55 pm

1 stop9h 13m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from District of Columbia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Idaho

What is the cheapest month to book a flight from District of Columbia to Idaho?

Currently, September is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $150). Flying from District of Columbia to Idaho in February is currently the most expensive (average of $301). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated enero 29, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from District of Columbia to Idaho to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from District of Columbia to Idaho?

    Airlines like United Airlines, Delta, and Alaska Airlines fly from District of Columbia to Idaho in about 9h 56m. The time it takes to get you to your destination can typically vary by up to 8h 47m. The distance between District of Columbia and Idaho is about 2099 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from District of Columbia to Idaho one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $91. United Airlines flights start at $118 while deals on American Airlines start at $140 one-way.

  • Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Idaho.

  • Can I find deals for business class flights from District of Columbia to Idaho?

    Yes. Cheapflights offers flight deals from District of Columbia to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Idaho?

    Currently, September is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $150). Flying from District of Columbia to Idaho in February is currently the most expensive (average of $301). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for District of Columbia to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from District of Columbia to Idaho

Discover the top 5 airlines that operate flights from District of Columbia to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$150Average$454FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$182Average$416FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$221Average$591FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$504FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$508FlexibilityNo cancel feeOn-time63%

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